Mohit walked 20 metres towards North, took a left turn and walked 10 metres, then he took a right turn and walked 20 metres, again he took a right turn and walked 10 metres. How far is he now from the starting point?
A
20 metres
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B
30 metres
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C
40 metres
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D
Can't be determined
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Solution
The correct option is C40 metres
See the image.
Mohit starts walking from point 'A' walks up to point B at 20 m. From there he took left turn and walked 10 m then he took right turn and walked 10 m and reached point 'E'.
E is in line with A and at a distance of 20+20 = 40 m from A.